• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Air intake structure of a vehicle of the straddle type. The object of the present invention is to provide an air intake structure of a straddle-type vehicle capable of maintaining a filter element without removing a tank, while guaranteeing the capacity of a filter of air. For this purpose, an air filter 41 is provided under an inverted u-type fuel tank 21 disposed above the main frames 13 left and right. The air filter 41 includes a main chamber 101 which is located between the main frames 13, and a sub-chamber 102 which is located on the outside in the vehicle width direction of the main frames 13. A rear section 102r of the sub-chamber 102 and a rear section of the filtering element 44 within the sub-chamber 102 are located in a space formed between each outer wall surface 13m of the main frames 13 and a surface of the tank facing the interior 21m of the fuel tank 21. A front section 102f of the sub-chamber 102 and a front section of the filtering element 44 project forwardly of the fuel tank 21 in a side view of the vehicle. The front section 102f of the sub-chamber 102 is provided with fixing means 73 for fixing the side cover (cover of the filtering element) 43 which covers the filtering element from the outside in the direction of the width of the vehicle. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2549829A2
    申请号:ES201431342
    申请日:2014-09-16
    公开日:2015-11-02
    发明作者:Shinya Koyama；Satoru Yamasaki
    申请人:Honda Motor Co Ltd；
    IPC主号:
    专利说明:

    DESCRIPTION Air intake structure of a vehicle of the astride type. Technical Field 5 The present invention relates to an air intake structure of a straddle type vehicle in which an air filter is arranged below a reservoir in turn disposed above a pair of left main frames and right. 10 Prior art In a vehicle of the astride type, such as a two-wheeled motorcycle and the like, the construction is known in which an air filter is arranged below a fuel tank that is disposed above a pair of main racks left and right. In this type of vehicle, at least 15 a part of the air filter is located between the left and right frames, and a separating element is arranged in the up and down direction such that it can divide an interior of the air filter (see patent reference # 1, for example). Reference of prior art 20 Patent Reference No. 1: Japanese Patent Application with Publication No. 2009-083810. Disclosure of the invention 25 Problem to solve by the invention In conventional construction, however, in order to have access to the filtering element it is necessary to disassemble the fuel tank, so operations such as replacing this filtering element and the like are complicated. On the other hand, in the conventional device the fuel tank is required to be easily fixed and removed. The present invention has been made in view of the circumstances described above, and is intended to provide an air intake structure of a motorcycle capable of maintaining the filter element without removing the tank, such as the fuel tank and similar, while maintaining the capacity of the air filter. Means to solve the problem In order to achieve the above objective, in accordance with the present invention, an air intake structure of a straddle type vehicle is provided that includes an air filter (41) arranged below of a reservoir (21) disposed above a left and right main racks (13), the reservoir (21) being formed by an inverted U-type convex cover extending from a top side to each side side of the main racks left and right (13), including the air filter (41) a main chamber (101) that is located between the main frames (13), and a sub-45 chamber (102) that is located on an outer side - in vehicle width direction - of the main frames (13), a filter element (44) being arranged in the sub-chamber (102), and a filter element (44) covering the cover (43) of the filter element (44) ) from the outside in the direction of the width of the vehicle and being fixed to the sub-chamber (102), in which a rear section (102R) of the sub-chamber (102) and a rear section of the filtering element (44) are located in a space (S1) formed between every 50 outer wall surface (13M) of the main frames (13) and an inward-facing tank surface (21M) of the tank (21), and in which a front section (102F) of the sub-chamber (102) and a front section of the filter element (44) are located in front of the space (S1) and project forward of the tank (21) in a side view of a vehicle body, and the section front (102F) of the sub-chamber (102) is provided with the fixing means (73) for fixing the cover (43) of the filtering element. 55 Under this construction, the capacity of the main chamber can be ensured by using the space between the main frames, and the capacity of the sub-chamber can also be guaranteed by making use of the space formed between each of the wall surfaces exterior of the main frames and the surface of the tank facing the interior of the fuel tank. In addition, since the fixing means 60 for fixing the cover of the filtering element that covers the filtering element from the outside in the direction of the width of the vehicle is located forward of the tank in the side view of the vehicle, the cover of the Filter element can be removed without removing the reservoir. Therefore, the maintenance of the filter element is carried out without removing the tank while guaranteeing the capacity of the air filter. 65 In the previous construction, the cover (43) of the filter element may have a fitting profile that projects backwards (43T), and the sub-chamber (102) may be provided, in the rear section (102R) thereof, located in the space (S1), of a guide opening (42H) into which it is inserted a fitting profile (43T) and is coupled from a front side. With this construction, it is easy to ensure the rigidity of support of the filter element lid, and the filter element lid can be easily assembled and disassembled in such a way that it slides back and forth. 5 Additionally, in the previous construction, a fixing part (71) of the filtering element is provided for fixing the filtering element (44) to the sub-chamber (102), in which the fixing means (71) of the Filter element (71) can be placed in front of the tank (21). With this construction, it is possible to access the fixing means of the filtering element without the need to remove the reservoir, whereby the replacement of the filtering element is easily performed. Additionally, in the previous construction, the space (S1) provided between each exterior wall surface (13M) of the main frames (13) and the interior oriented tank surface (21M) of the tank (21) can be formed from of a V-shaped space that widens in the forward direction, the cover (43) of the filtering element can widen in the direction of the width of the vehicle, while extending forward along the surface of the inwardly oriented tank (21M) of the tank (21), and an air intake duct (81) can be mounted detachably in a forward position of the tank (21). With this construction, the sub-chamber can be formed using the space between each of the main frames and the tank. In addition, the filter element lid 20 can be easily mounted and disassembled along the surface of the tank facing the interior of the fuel tank, and the air intake duct can be mounted and removed without the need to disassemble the tank made out of fuel. Additionally, in the previous construction, a resonator (62) is provided which is located after the filter element (44) in the sub-chamber (102), the resonator (62) being able to be mounted in an opening (46A) of the element of filtering to which the filtering element (44) is coupled, in the side view of the vehicle body. With this construction, when the filter element is removed, it is possible to access the resonator without the need to disassemble the fuel tank, so that the resonator maintenance operations can be easily performed. 30 Additionally, in the previous construction, the air filter (41) is formed with the main chamber (101) and an air filter box (42) having inverted U sections (42X) left and right each of which it extends to the left and right from the main chamber (101) and straddles the left and right main racks (13) from above, in which the left and right inverted U sections (42X) can have openings (42K) that open outward in the direction of the width of the vehicle, and in which the filtering element (44) can be arranged in each of the openings (42K), and the covers (43) of the elements of filtering can be fixed in such a way as to close each of the openings (42K) to form the pair of left and right sub-chambers (102). With this construction, the left and right sub-chambers can be easily formed by attaching the caps of the filter elements directly 40 to the air filter housing. In addition, it is not required that the main chamber and the sub-chamber be formed by separate housings, so that the components can be reduced. Effects of the invention Four. Five In accordance with the present invention, the reservoir is formed from an inverted U-type cover that extends from the upper side to each of the lateral sides of the left and right main frames. The air filter disposed below the tank includes the main chamber that is located between the main frames and a sub-chamber that is located outside the main frames in the direction of the width of the vehicle. The rear section of the sub-chamber and the rear section of the filter element 50 are located in the space formed between each outer wall surface of the main frames and the surface of the tank facing the interior of the fuel tank. The front section of the sub-chamber and the front section of the filter element are located in front of the space and project forward of the tank in the side view of the vehicle. The front section of the sub-chamber is provided with fixing means for fixing the cover of the filtering element that covers the filtering element from the outside in the direction of the width of the vehicle. Therefore, the maintenance of the filter element is carried out without removing the tank while guaranteeing the capacity of the air filter. Additionally, since the lid of the filtering element has the fitting profile that projects backwards and the sub-chamber is provided, in the rear section thereof located in the space, of the opening into which an insert is inserted. Fitting profile and engages from the front side, it is easy to guarantee the rigidity of support of the filter element lid, and the filter element lid can be easily mounted and disassembled so that it can slide in the forward direction and back. Additionally, the fixing means of the filtering element for fixing the filtering element to the sub-chamber is provided. Since the fixing means of the filtering element is located in front of the tank, it is possible to have access to the fixing part of the filtering element without removing the reservoir, whereby the filtering element can be easily replaced. Additionally, the space provided between each outer wall surface of the main frames and the surface of the tank facing the interior of the tank is formed from a 5V-shaped space that widens in the forward direction. The lid of the filtering element widens in the direction of the width of the vehicle, while extending in the forward direction along the surface of the tank oriented towards the inside of the tank. The air intake duct is removably mounted in a forward position of the tank. Therefore, the sub-chamber can be formed using the space between each of the main frames and the tank. On the other hand, the lid of the filtering element 10 can be easily mounted and disassembled along the surface of the tank facing the interior of the fuel tank, and the air intake duct can be mounted and disassembled without disassembly. the fuel tank In addition, the resonator is located after the filtering element of the sub-chamber. In the side view of the vehicle body, the resonator is mounted in the filter element opening in which the filter element is mounted. Therefore, when the filter element is removed, it is possible to access the resonator without the need to disassemble the fuel tank, so that the resonator maintenance operations can be easily performed. twenty Additionally, the air filter is configured to form the main chamber and the air filter housing that has the left and right inverted U sections each extending to the left and right from the main chamber and mounted to astride the main left and right frames from above. The left and right inverted U sections have openings that open outward in the vehicle width direction. The filtering element is disposed in each of the openings, and the cover 25 of the filtering element is fixed in such a way as to close each of the openings to form the pair of left and right sub-chambers. Therefore, the left and right sub-chambers can be easily formed and the components can be easily reduced. Brief description of the drawings 30 Figure 1 is a right side view of a front part of a two-wheeled motorcycle according to an embodiment of the present invention; Figure 2 is a side view in which a fuel tank of Figure 1 is shown by double dotted lines; 35 Figure 3 is a top plan view of Figure 2 as seen from an elevated position to the vehicle body; Figure 4 is a top plan view showing an internal structure of an air filter as seen from above; Figure 5 is a cross-sectional view of the air filter of Figure 4; and 40 Figure 6 is a right side view showing the air filter and its surrounding structure. Best way to carry out the invention The embodiment of the present invention will be described below with reference to the accompanying drawings. In the following description, the orientation, such as front, rear, left, right, upper and lower, will be identical to the orientation of the vehicle body unless otherwise indicated. In addition, in each drawing, a FRONT reference character designates a forward direction of the vehicle body, an UP reference character designates an upper direction of the vehicle body and a LEFT reference character designates a left direction of the vehicle body. vehicle. fifty Figure 1 is a right side view of a front part of a two-wheeled motorcycle according to an embodiment of the present invention. A vehicle body frame 11 of this motorcycle 10 includes a pair of left and right main frames 55 that extend back and down from a frame tube 12. A fuel tank (tank) 21 is located above the main frames 13, and an engine 31 is supported below the main frames 13. A pair of left and right front forks 16 is supported through a pair of upper and lower bridge members 60 (an upper bridge and a lower bridge) 14, 15 by the frame tube 12 in a rotatable shape to the left and to the right. A handlebar 17 is also supported by the frame tube 12. When the handlebar 17 is operated to the left and right, a front wheel 50 which between the lower ends of the left and right front forks 16 is directed to the left and right. 65 A pair of left and right turntables 18 joins each rear end portion of the frames main right and left 13. On the turntables 18 a pair of left and right footrests (not shown in the drawing) are fixed to allow the feet of a driver sitting in a driver's seat 19 located at the rear of the tank of fuel 21, rely on them. On the other hand, a pair of left and right seat frames 20 are attached to the turntables 18 which extend upwardly at the rear in the rearward direction of the vehicle body. The driver's seat 19 is supported by the seat frames 20. Figure 2 is a side view in which a fuel tank of Figure 1 is indicated with double dotted lines, and Figure 3 is a top plan view of Figure 2 as seen from a position 10 raised to the vehicle body As shown in Figures 2 and 3, in a plan view of the vehicle body (Figure 3), the left and right main frames 13 are integrally provided with front sections of the main frames 13A extending from the tube of frame 12 to the rear and outward 15 in the direction of the width of the vehicle and rear sections of the main frames 13B extending from the rear end portions of the front sections of the main frames 13A to the rear and toward inside in the direction of the width of the vehicle. An air filter 41 is disposed in the front sections of the main frames 13A left and right. 20 The fuel tank 21 is formed in a straddle type tank or inverted U-tank that straddles the front sections of the main frames 13A and the rear sections of the main frames 13B from above. The fuel tank 21 is configured to cover the air filter 41 from above. Specifically, the air filter 41 is arranged, making use of a space between the fuel tank 21 and the engine 31. 25 A throttle body 51 (Figures 2 and 3) is arranged between the air filter 41 and the engine 31. As shown in Figure 2, an upper end portion of the throttle body 51 is connected through a pipe of connection 52 to a rear lower part of the air filter 41, while a lower end part of the throttle body 51 is connected through an insulator 53 to a cylinder section 32 of the engine 31. With 30 this construction, it is possible to forming an air intake course of the air filter 41 towards the engine 31 in the form of a passage that extends linearly downwards, by which it contributes to the improvement in the efficiency of the air intake of the engine 31. The engine 31 is formed in a parallel multi-cylinder engine (a two-cylinder engine in this construction) of the type in which the cylinder section 32 to which the throttle body 51 is connected extends upwardly from a upper front part of a crankcase 33. As shown in Figures 1 and 2, the fuel tank 21 is integrally provided in general terms with a front section 21A of the tank that extends to cover from the upper sides up to 40 the left and right side sides of the front sections of the main frames 13A and a rear section 21B of the tank which is located above the rear sections of the main frames 13B. The front section 21A of the tank has a pair of outer cover sections 21C left and right to cover each outside of the front sections of the main frames 13A left and right. A visible contour of this outer cover section 21C is indicated by the double-dashed dotted lines 45 of Figure 3. With this construction of the arrangement of the tank, as shown in Figure 3, a pair of V-shaped spaces S1 that widen the width of the vehicle is formed, while extending forward between a surface of the tank facing the interior 21M (corresponding to the surface of the tank 50 facing inward of the front section 21A of the tank) of the outer cover section 21C and an outer wall surface 13M of the front section of the main frame 13A. Here, since the front section 21A of the tank extends to cover from the upper side to the left and right sides of the front sections of the main frames 13A, the capacity of the fuel tank can be increased. On the other hand, the rear section 21B of the tank is formed within the width between the rear sections of the main frames 13B in the plan view of the vehicle body. Therefore, the driver sitting in the driver's seat 19 can easily sit astride the fuel tank 21, and it is possible to improve the degrees of freedom with respect to the driver's movement. 60 The air filter 41, in the plan view of the vehicle body, includes an air filter case 42 that is formed with a main chamber 101 between the front sections of the main frames 13A left and right, and a pair of left and right side covers (filter element covers) 43 that connects to each of the left and right front parts of the air filter housing 42 and a sub-chamber 102 is formed inside the interior of the same. Here, the main chamber 101 is a space that is connected through the connection tubes 52 (multiple (two) connection tubes in this construction) provided for each of the cylinders, to the throttle body 51 located at the side of the engine 31. The main chamber 101 is configured to store the clean air that is about to be inhaled in the engine 31. In addition, the sub-chamber 102 is a space for housing a filter element 44 inside It purifies the outside air. The outside air introduced in the sub-chamber 102 is purified by the filtering element 44 and supplied to the main chamber 101. Figure 4 is a top plan view showing an interior structure of the air filter 41 as seen from above and Figure 5 is a cross-sectional view of the air filter 41 of Figure 4. In Figure 4, the right side cover 43 is mounted and the left side cover 43 is removed. As shown in Figures 2 to 5, the air filter case 42 is formed in a hollow structure having an opening (hereinafter referred to as the upper opening) 42A that opens upward between the front sections 15 of the 13A main racks left and right. This upper opening 42A is closed with a cover body 42B (Figure 3) to thereby form the main chamber 101. Additionally, the air filter housing 42, as shown in Figure 4, includes left and right inverted U sections 42X each extending to the left and right of the main chamber 101 and 20 astride in the front sections of the main frames 13A left and right, from above. The inverted U-sections 42X each have openings (hereinafter referred to as the side openings) 42K that open outward in the vehicle width direction (see Figure 5). On the other hand, each of the inverted U-sections 42X has a room 42S that extends backward from the side opening 42K and is fixed to each of the main frames 13. The air filter 41 is supported on the frames main 13 for the pair of stays left and right 42S. As shown in Figures 4 and 5, the filter element 44 is disposed in each of the side openings 42K and the side cover 43 is fixed in such a way as to close each of the side openings 42K whereby it forms the pair of left and right sub-cameras 102. 30 By the way, the air filter case 42 has a bilaterally symmetrical configuration with respect to a central plane C1 (hereinafter referred to as the central plane of the vehicle body) in the vehicle width direction (see Figure 3 ). Similarly, each of the side covers 43 has a bilaterally symmetrical configuration with respect to the central plane of the vehicle body C1. 35 The main chamber 101, as shown in Figure 3, is formed in a rectangular box shape that extends over the front sections of the left and right main frames 13A in the vehicle width direction. On the other hand, an upper surface (corresponding to an upper surface of the cover body 42B) of the main chamber 101 is formed, as shown in Figure 2, along a bottom plate 21L of the fuel tank 21 in the side view of the vehicle body. With this construction, the main chamber 101 is able to be arranged in the vicinity of the bottom plate 21L of the fuel tank 21, and by making effective use of an open space between the fuel tank and the engine 31, it is possible to form the main chamber of large capacity 101. Furthermore, since filtering elements 44 are not arranged between the main frames 13 left and right, the capacity of the main chamber 101 can also be increased for this reason. In addition, since the main chamber 101 is covered with the fuel tank 21, the main chamber 101 is not visible from the outside, thus contributing to an improvement in the design of the vehicle body. As shown in Figures 4 and 5, the first resonators 61 50 extending from the left and right connecting tubes 52 and the second resonators 62 disposed between the main chamber 101 and each are provided in the main chamber 10a of the left and right sub-chambers 102. The first resonators 61 are resonators for the reduction of the air intake noises of the left and right connecting tubes 52, by using a theory of a Helmholtz resonator and are arranged in pairs to the left and to the right, between each of the connection tubes 52 and each of the left and right side walls 55 of the main chamber 101. On the other hand, the second resonators 62 are resonators to reduce the air intake noises of the left and right sub-chambers 102, through the use of the Helmholtz resonator theory and are each arranged on sides after the elements of filtered 44 of the left and right sub chambers 60 102. The first left and right resonators 61 and the second left and right resonators 62 are located in bilaterally symmetrical positions with respect to the central plane of the vehicle body C1. Additionally, each of the left and right resonators 61 is connected to the connection tubes 52, and 65 each of the second left and right resonators 62 is detachably attached to the filter housing. of air 42 by means of a pair of coupling parts forward and backward 64 (see Figure 5). As shown in Figure 5, each of the filtering elements 44 is mounted on a partition wall 46 to cover the side opening 42K of the air filter case 42. The partition wall 46 is fixed to the side opening 42K of the air filter case 42 and is configured to divide the sub-chamber 102 into the left and 5 right passenger compartment. Figure 6 is a right side view showing the air filter 41 and its surrounding structure. In Figure 6, the side cover 43 is removed and the partition wall 46 is exposed outwards. 10 The dividing wall 46 has an opening 46A of the filtering element to which the filtering element 44 is fixed. The filtering element 44 is fixed to the dividing wall 46 by a pair of upper and lower fixing means 71 (screws male in this construction). As shown in Figure 6, the left and right resonators 62, in the side view of the body of the vehicle, are mounted behind the openings 46A of the filtering elements, respectively. Therefore, in the case where each of the side cover 43 and the filtering elements 44 are disassembled, the second resonator 62 is exposed outwardly so that maintenance and assembly and disassembly operations are capable of being performed. easily. twenty As shown in Figure 3, each of the sub-chambers 102 is formed in a box shape that extends along the V-shaped space S1 formed between each outer wall surface 13M of the main frames 13 and the surface of the inwardly oriented tank 21M of the fuel tank 21. On the other hand, the sub-chambers 102, in the side view of the body of the vehicle, are arranged in such positions in order to overlap with the main frames 13 left and right and the fuel tank 21. Subsequently, the sub-chambers 102 will be explained in detail. A rear section 102R of the sub-chamber 102 extends in the upward and downward direction and fits into the S1-shaped space V. As shown in Figure 2, the rear section 102R overlaps the outer cover section 21C of the fuel tank 30 21 in the side view of the vehicle body. On the other hand, a front section 102F of the sub-chamber 102 is located forward of the space S1 and projects forward of the outer cover section 21C of the fuel tank 21 in the side view of the vehicle body. As shown in Figure 2, the rear section 102R of the sub-chamber 012 includes at least one rear end 35 of the sub-chamber 102, and includes both a rear end of the side opening 42K and a rear end of the cover side 43. Similarly, the front section 102F of the sub-chamber 102 includes at least one front end of the sub-chamber 102 (a front end of the side opening 42K, and a front end of the side cover 43). In this construction, the front section 102F also includes an intermediate part in the forward and backward direction of the sub-chamber 102 (an intermediate part in the forward and backward direction of the side opening 42K, and an intermediate part in the forward and backward direction of the side cover 43) in addition to the front end of the sub-chamber 102. The side cover 43 constituting an outer part in the width direction of the sub-chamber vehicle 102 is formed in the form of a cover that widens in the width direction of the vehicle, 45 while extending in the direction forward, whereby sub-chamber assembly 102 is formed in a swollen shape, which widens in the direction of vehicle width, while extending in the forward direction. Here, an outer side surface 43M of the side cover 43 constituting an outer surface in the width direction of the sub-chamber vehicle 102 is formed as an inclined surface that extends along the surface of the inward-facing tank 21M of the fuel tank 21 in the condition where the side cover 43 is fixed to the air filter housing 42. In addition, each of the inner surfaces 42M of the inverted U-sections 42X, which constitute an inner surface in the width direction of the sub-chamber vehicle 102 in the opposite position to the front section of the main frame 13A, is formed as an inclined surface that extends along the wall surface outside 13M (as shown in Figure 3) of the front section of the main frame 13A. With this construction, the sub-chambers 102 can be arranged in the vicinity of the inwardly oriented tank surface 21M of the fuel tank 21 and the outer wall surfaces 13M of the front sections of the main frames 13A, while increases the capacity of the same 60 by using the space S1. Thus, in this construction, the large capacity main chamber 101 is provided, and the sub-chambers 102 are also increased in capacity, so that it is possible to provide the air filter 41 having the wide and large capacity elementary area and that it is easy to improve the air intake efficiency. 65 Additionally, in this construction, when the outer side surface 43M of the side cover 43 slides forward and backward along the inside surface of the tank 21M of the fuel tank 21, the side cover 43 is placed and Easily removed from the V-shaped space. Specifically, the side cover 43 is capable of being easily placed and removed using the inside surface of the tank 21M of the fuel tank 43 as a guide. 5 As shown in Figure 2, a pair of fitting profiles projecting upper and lower back 43T is integrally provided in each of the rear sections 102R of the side covers 43. Similarly, around the side opening 42K of the inverted U-section within which the side cover 43 is adjusted, a pair of upper and lower guide openings 42H are integrally provided within 10 of which the pair of upper and lower fitting profiles 43T is inserted from the direction towards front in order to mate with it. With this construction, when the side cover 43 slides backwards using the inwardly oriented tank surface 21M of the fuel tank 21 as a guide, the fitting profiles 43T of the side cover 43 are capable of being easily coupled with the guide openings 42H of the inverted U-section 42X. Due to the coupling, the side cover 43 is allowed to mount temporarily. As shown in Figure 6, the coupling structure between the fitting profiles 43T and the guide openings 42H as above is provided in the rear sections of the sub-chambers 42, and are therefore covered with the fuel tank 21. Therefore, the coupling structure is not exposed outwardly, which contributes to the improvement in the design of the vehicle body. On the other hand, since the side cover 43 is allowed to be mounted temporarily, the operation for fixing the side cover 43 by a plurality of fixing means 73A, 73B, 73C is easily performed. 25 Here, these fixing means 73A, 73B, 73C for fixing the side cover 43 are fixed through the side cover 43 to the partition wall 46. In more specific terms, as shown in Figure 6, a plurality of fixed parts 83A, 83B, 83C are integrally formed in the partition wall 46 which must be fixed by the fixing means 73A, 73B, 73C. These fixed parts 83A, 83B, 83C are formed in the form of a female screw and are provided at separate intervals in the partition wall 46 in an area of the front section 102F of the sub-chamber 102 and around the side opening 42K . 35 As shown in Figure 2, the fixing means 73A is a male screw for fixing from the outside in the direction of the width of the vehicle a front upper part of the side cover 43 to the fixed part 83A provided on the side of the air filter housing 42. In addition, the fixing means 73B is a male screw for fixing from the outside in the direction of the vehicle width from the front end of the side cover 43 to the fixed part 83B arranged in the side of the air filter housing 42. On the other hand, the fixing means 73C is a male screw for fixing from the outside in the direction of the vehicle width from a lower end of the side cover 43 to the part fixed 83C provided on the side of the air filter housing 42. Here, the fixing means 73A, 73B, 73C and the fixed parts 83A, 83B, 83C are designated 45 respectively as "fixing means 73" and "fixed parts 83", provided there is no need to make a distinction special among them. Referring again to Figure 2, these fixing means 73 are fixed to the area of the front section 102F of the sub-chamber 102 from the outside in the direction of the width of the vehicle, so that the 50 fixing means 73 they are capable of being assembled and disassembled without disassembling the fuel tank 21, respectively. Therefore, the side cover 43 is allowed to mount and disassemble easily without the need to disassemble the fuel tank 21. When the side cover 43 has been removed, as shown in Figure 6, the filter element 44 55 is exposed outwardly. That is, the side cover 43 functions as a cover of the filter element to cover the filter element 44 in such a way as to expose the latter freely and also functions as a cover to define a space before the filter element 44 in the sub -Camera 102. Incidentally, the cover 43 and an air intake duct 81 referred to below are 60 covered with a vehicle body cover (a front side fairing), not shown in the drawing, to cover the left part and right of the front of the vehicle body. The vehicle body cover (the front side fairing) is removably mounted without the need to disassemble the fuel tank 21. 65 As shown in Figure 6, a rear section 44R of the filter element 44 overlaps the section outer cover 21C of the fuel tank 21 in the side view of the vehicle body, while a front section 44F of the filtering element 44 is exposed forward of the outer cover section 21C of the fuel tank 21 in the side view of the vehicle body. With this configuration, the filter element 44 of a large size can be arranged. 5 The upper and lower clamping portions 71 for fixing the filter element 44, as shown in Figure 6, are fixed to the partition wall 46 in the area of the front section 102F of the sub-chamber 102 from the outside in the direction of the width of the vehicle. Therefore, the clamping portions 71 can be fixed and released without the need to disassemble the fuel tank 21, whereby the filtering element 44 can be easily mounted and disassembled. Therefore, various types of maintenance operations, such as inspection, cleaning, replacement, etc., with respect to the filtering element 44 can be easily performed without disassembling the fuel tank 21. Additionally, the air intake ducts 81 for introducing outside air into the sub-chambers 102 are provided in the left and right side covers 43, respectively. These air intake ducts 81 extend forward from the side cover 43, and each of the front ends thereof opens forward in order to inhale outside air at the front of the engine 31. By therefore, the outside air that is not thermally influenced by the engine 31 can be introduced into the sub-chambers 102. twenty These air intake ducts 81 are fixed on the left and right side covers 43 in order to fix a plurality of fastening means 75 to the outer side surfaces 43M of the side covers 43, respectively, from the outside in the direction of the vehicle width These fastening means 75 are fixed to the outer side surfaces 43M of the side covers 43 located in the area of the front sections 102F of the sub-chambers 102. Therefore, the plurality of fastening means 75 can be fixed and 25 release without the need to disassemble the fuel tank 21, and the air intake ducts 81 can be easily assembled and disassembled. On the other hand, as shown in Figure 2, since the air intake duct 81 is fixed to an intermediate part (corresponding to an intermediate part in the forward and backward direction of the sub-30 chamber 102) in the forward and backward direction of the outer side surface 43M of the side cover 43, the outside air is allowed to flow to a center of the filter element 44. Additionally, on this motorcycle 10, as shown in Figure 1, a pair of left and right radiators 91 are provided to cool the air by cooling water that is passed through the engine 31 35 below the side covers 43 left and right and on the left and right sides of the cylinder sections 32 of the engine 31. As described above, since the air intake ducts 81 extend forward from the left and right side covers 43, it is difficult that the outside air heated by the radiators 83 enters the air intake ducts 81. Therefore, the outside air that is not thermally influenced by the radiators 83 can be introduced into the sub-chambers 102. 40 Additionally, a radiator fan 92 is attached to a rear surface of the radiator 91, and a radiator cover 93 extending rearwardly on an upper side and an inner side in the direction of the width of the radiator vehicle 83 joins the radiator 83. This radiator cover 93 prevents heat from being transmitted from the engine 31 to the radiator 83, and guides back the outside air that has passed through the radiator 45 91. Therefore, the thermal influence on the filter of air 41 located above the radiator 91 in the side view of the vehicle body can be restricted. As described above, in this embodiment, as shown in Figure 2, the air filter 41 is disposed below the fuel tank 21 of the inverted type U disposed above the 50 main frames 13 right and left. The air filter 41 includes the main chamber 101 which is located between the main frames 13, and the sub-chamber 102 which is located outside in the vehicle width direction of the main frames 13. The rear section 102R of the sub-chamber 102 and the rear section of the filtering element 44 within the sub-chamber 102 are located in the space S1 formed between each outer wall surface 13M of the main frames 13 and the surface of the tank 55 facing inwards 21M of the fuel tank 21. The front section 102F of the sub-chamber 102 and the front section of the filter element 44 are located in front of the space S1 and project forward of the fuel tank 21 in the side view of the vehicle. The front section 102F of the sub-chamber 102 is provided with fixing means 73 for fixing the side cover (filtering element cover) 43 covering the filtering element 44 from the outside in the vehicle width direction . 60 Under this construction, the capacity of the main chamber 101 can be guaranteed by the use of the space between the main frames 13, and the capacity of the sub-chamber 102 can also be guaranteed by the use of the space S1 formed between each of the outer wall surface 13M of the main frames 13 and the surface of the inward-facing tank 21M of the fuel tank 21. 65 In addition, given that the fixing means for fixing the side cover 43 covering the filtering element 44 from the outside in the direction of the width of the vehicle is located in front of the fuel tank 21 in the side view of the vehicle, it is possible to have access to the fixing means 73 without the need to disassemble the fuel tank 21. Both, maintenance, such as inspection, cleaning, replacement, etc. of the filter element 44 located inside that of the side cover 43 can be carried out without disassembling the fuel tank while ensuring the capacity of the air filter 41. 5 As shown in Figure 2, the side cover 43 has the rearwardly projecting fitting profile 43T, and the sub-chamber 102 is provided, in the rear section 102R thereof located in the space S1, of the opening guide 42H in which a 43T fit profile is inserted so that it engages with it from the front side. With this construction, it is easy to guarantee the stiffness of support of the side cover 43. On the other hand, the side cover 43 can be temporarily fixed to the sub-chamber 102 or removed from the sub-chamber 102 by sliding the side cover 43 towards forward and backward, so that the assembly and disassembly operations of the side cover 43 can be easily carried out. Additionally, as shown in Figure 6, since the clamping means (fixing means of the filtering element 15) 71 for fixing the filtering element 44 to the sub-chamber 102 is located forward of the fuel tank 21 , it is possible to have access to the fixing means 71 when the side cover 43 is disassembled. Therefore the filter element 44 can be removed without the need to disassemble the fuel tank 21 whereby the replacement of the filter element 44 or the like It can be done easily. twenty Additionally, as shown in Figure 3, the space S1 provided between each outer wall surface 13M of the main frames 13 and the surface of the inwardly oriented tank 21M of the fuel tank 21 is formed in a substantially shaped space. V that widens in the forward direction. The side cover 43 widens in the width direction of the vehicle, while extending forward along the surface of the inwardly oriented tank 21M of the fuel tank 25 21. The air intake duct 81 is mounted detachably in the front position of the fuel tank 21. With this construction, the sub-chamber 102 can be formed by using the space S1 between each of the main frames 13 and the fuel tank 21. In addition, the cover Side 43 can be easily mounted and removed along the surface of the inward-facing tank 21M of the fuel tank 21, and the air intake duct 81 can be mounted and 30 disassembled without the need to disassemble the fuel tank 21 . Additionally, as shown in Figure 6, the second resonator 62 is located after the filtering element 44 in the sub-chamber 102. The second resonator 62 is mounted behind the opening 46A of the filtering element in which the filter is mounted. filter element 44, in the side view of the vehicle. With this construction, 35 when the filter element 44 is removed, it is possible to have access to the second resonator 62 without the need to disassemble the fuel tank 21, so that maintenance operations, such as inspection, replacement, etc. of the second resonator 62 can be easily performed. In addition, as shown in Figure 5, the air filter 41 is formed with the main chamber 101 and the box of the air filter 40 having inverted U sections 42X left and right each of which extends to the left and right from the main chamber 101 and straddles the left and right main frames 13 from above. The inverted U sections 42X left and right have openings 42K that open outward in the vehicle width direction. The filtering elements 44 are arranged in each of the openings 42K, and the side covers 43 are fixed in such a way as to close 45 each of the openings 42K to form the pair of left and right sub-chambers 102. With this construction, the left and right sub-chambers 102 can be easily formed by fixing the side covers 43 directly to the air filter case 42. In addition, it is not required that the main chamber 101 and the sub-chamber 102 they are formed by separate housings, so that the component parts can be easily reduced. While the present invention has been described in its preferred embodiment, it is to be understood that the present invention is not limited to the embodiment described above, and that various changes and modifications can be made without departing from the spirit of the present invention. 55 For example, although, in the previous embodiment, the fuel tank 21 is located above the left and right main frames 13 and the air filter case 41 is located below the fuel tank 21, the fuel tank can be placed elsewhere and the tank that serves as a container box can be arranged above the main racks 13 left and right. In particular, the air intake structure of the present invention can be applied to the structure in which the tank, such as the fuel tank, the similar container box is disposed above the left and right main frames 13 and the air filter 41 is disposed below the reservoir. Furthermore, although, in the previous embodiment, the fastening means 71, 73 are formed by male screws and 65 the fixed parts 83 are formed by female screws, other fixing structures can be used publicly known in general terms. For example, a quick fastener can be used as a clamping means 73. On the other hand, although, in the previous embodiment, the present invention relates to the air intake structure of the motorcycle 10, the present invention can be widely applied in the air intake system 5 of vehicles of the type of ride astride, including those other than a two-wheeled motorcycle. Here, astride-type vehicles include all vehicles that have to be astride, such as two-wheeled motorcycles (including a motor-driven bicycle), three-wheeled vehicles and motor vehicles. four wheels classified as ATV (All Terrain Vehicle), a three wheel motorcycle or similar. 10 Description of the reference characters 10: two-wheeled motorcycle (astride type vehicle), 13: Main frame, 13M: Exterior wall surface, 21: Fuel tank (tank), 21M: Tank surface facing 15 inside, 41: Air filter, 43: Side cover (filter element cover), 44: Filter element, 46: Split wall, 46A: Filter element opening, 61: First resonator, 62: Second resonator, 71: Fixing means (filter element fixing means), 73, 73A, 73B, 73C: fixing means, 81: Air intake duct, 101: Main chamber, 102: Sub-chamber, 102F: Front section, 102R : Rear section, S1: V-shaped space 20
    权利要求:
    Claims (1)
    [1]
    1. An air intake structure of a straddle type vehicle in which an air filter (41) is disposed below a reservoir (21) disposed above the left main frames (13) and law, which includes: 5 the tank (21) formed of an inverted U-type cover that extends from one upper side to each side side of the left and right main frames (13), the air filter (41) that includes a main chamber (101) that is located between the main frames 10 (13), and a sub-chamber (102) that is located on an outer side in a vehicle width direction of the main frames (13), a filtering element (44) that is arranged in the sub-chamber (102), and a cover (43) of the filter element that covers the filter element (44) from the outside in the direction of the width of the vehicle and that is fixed to the sub-chamber (102), wherein a rear section (102R) of the sub-chamber (102) and a rear section of the filtering element (44) are located in a space (S1) formed between each outer wall surface (13M) of the main frames (13) and an inwardly oriented tank surface (21M) of the tank (21), and 20 wherein a front section (102F) of the sub-chamber (102) and a front section of the filtering element (44) are located in front of the space (S1) and are projected forward of the reservoir (21) in a view side of a vehicle body, and the front section (102F) of the sub-chamber (102) is provided with the fixing means (73) for fixing the cover (43) of the filtering element. 25 2. An air intake structure of a vehicle according to claim 1, wherein the cover (43) of the filtering element has a fitting profile (43T) projecting backward and the sub-chamber (102 ) is provided, in the rear section (102R) thereof, located in the space (S1), of a guide opening (42H) into which a fitting profile (43T) is inserted and coupled from a front side . 30 3. An air intake structure of a vehicle according to claims 1 or 2, further comprising fixing means (71) of the filtering element for fixing the filtering element (44) to the sub-chamber ( 102), wherein the fixing means (71) of the filtering element is located in front of the tank (21). 35 4. An air intake structure of a vehicle according to any one of claims 1 to 3, wherein the space (S1) provided between each outer wall surface (13M) of the main frames (13) and the Inwardly oriented tank surface (21M) of the tank (21) is formed by a substantially V-shaped space that widens in the forward direction, the lid (43) of the filter element widening in the direction of the width of the vehicle, while extending forward along the surface of the inward-facing tank (21M) of the tank (21), and an air intake duct (81) is removably mounted in a position toward in front of the tank (21). 5. An air intake structure of a vehicle according to any one of claims 1 to 45 4, further comprising a resonator (62) which is located after the filtering element (44) in the sub-chamber (102 ), the resonator (62) being mounted behind an opening (46A) of the filtering element in which the filtering element (44) is mounted, in the side view of the vehicle body. 6. An air intake structure of a vehicle according to any one of claims 1 to 50 5, wherein the air filter (41) is formed with the main chamber (101) and an air filter case (42) that has left and right inverted U sections (42X) each extending left and right from the main chamber (101) and straddling the left and right main frames (13) from above, in which the left and right inverted U sections (42X) have openings (42K) that open outwards in the vehicle width direction, and in which the filter element (44) 55 is arranged in each of the openings (42K) and the covers (43) of the filtering elements are fixed in such a way as to close each of the openings (42K) to form the pair of left and right sub-chambers (102) .
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    JP5856859B2|2012-02-02|2016-02-10|本田技研工業株式会社|Intake device for saddle-ride type vehicles|
    JP5871672B2|2012-03-15|2016-03-01|本田技研工業株式会社|Suction type vehicle intake structure|JP2021008173A|2019-06-28|2021-01-28|ヤマハ発動機株式会社|Straddle-type vehicle|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    JP2013-199274|2013-09-26|
    JP2013199274A|JP5852071B2|2013-09-26|2013-09-26|Air intake structure for saddle-ride type vehicles|
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